Table 1: Morphometric measurements and measuring devices used in the study.

Character and (Abbreviations) Description and (Measuring device) ٭
Total Length, (TL) Distance from the tip of snout to the posterior tip of the lower lobe of the caudal fin, (MB)
Standard Length, (SL) Distance from the tip of the snout to the caudal- fin base at articulation, (MB)
Head Length, (HL) Distance from the tip of the snout to bony posterior margin of the operculum, (V)
Head Width, (HW) Head width measured at the level of the posterior edge of fontanel, (V)
Snout Length, (SNL) Distance from the tip of the snout to bony anterior margin of eye, (V)
Eye Diameter, (ED) Distance between the anterior and posterior border of eye, (V)
Inter Orbital distance, (IOD) The Minimal distance between orbits, (V).
Body Depth, (BD) Maximal vertical body depth situated in- between the anterior base of dorsal fin and origin of the pelvic fin, (T).
Body Width, (BW) The greatest width just posterior to the gill opening, (V)
Pre-pectoral Length, (PPCL) Distance from the tip of snout to the base of first pectoral-fin ray, (T).
Pre-pelvic Length, (PPVL) Distance from the tip of snout to the base of first pelvic-fin ray, (T)
Pre-anal Length, (PAL) Distance from the tip of snout to the base of first anal-fin ray, (T).
Pre-dorsal Length, (PDL) Distance from the tip of snout to the base of first dorsal-fin ray, (T)
Longest Dorsal-fin
ray Length, (LDFL)
Distance between the most anterior and posterior point of dorsal-fin base, (V)
Dorsal-fin Base Length, (DFBL) Distance between the most anterior and posterior point of dorsal-fin base, (V)
Dorsal-adipose Distance, (DAD) Distance between the most posterior point of dorsal-fin base and anterior point of dorsal-fin base and anterior point of the adipose-fin base, (V).
Caudal-peduncle Length, (CPL) The horizontal distance between the most posterior point of the caudal fin at articulation, (V)
Caudal-peduncle Depth, (CPD) Minimum vertical depth of caudal peduncle, (V).
Anal-fin Base
Length, (AFBL)
Distance between the most anterior and posterior point of anal-fin base, (V)
Pelvic fin Length, (PVFL) From base to the tip of the pelvic fin, (V)
Pectoral fin Length, (PFL) From base to the tip of the pectoral fin, (V)
Caudal fin Length, (CFL) From tail base to the tip of the caudal fin, (V)

٭ MB= Measuring Board; T= Measuring Tape; V= Vernier Caliper